Examples with ParsingException com.google.refine.expr.ParsingException used on opensource projects

Example 11 with ParsingException

use of com.google.refine.expr.ParsingException in project OpenRefine by OpenRefine.

the class ScatterplotFacet method getBinIndex.

public static NumericBinIndex getBinIndex(Project project, Column column, Evaluable eval, String expression, String mode) {
    String key = "numeric-bin:" + mode + ":" + expression;
    if (eval == null) {
        try {
            eval = MetaParser.parse(expression);
        } catch (ParsingException e) {
            logger.warn("Error parsing expression", e);
        }
    }
    NumericBinIndex index = (NumericBinIndex) column.getPrecompute(key);
    if (index == null) {
        index = "row-based".equals(mode) ? new NumericBinRowIndex(project, new ExpressionBasedRowEvaluable(column.getName(), column.getCellIndex(), eval)) : new NumericBinRecordIndex(project, new ExpressionBasedRowEvaluable(column.getName(), column.getCellIndex(), eval));
        column.setPrecompute(key, index);
    }
    return index;
}

Example 12 with ParsingException

use of com.google.refine.expr.ParsingException in project OpenRefine by OpenRefine.

the class PreviewExpressionCommand method doPost.

@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    try {
        Project project = getProject(request);
        int cellIndex = Integer.parseInt(request.getParameter("cellIndex"));
        String columnName = cellIndex < 0 ? "" : project.columnModel.getColumnByCellIndex(cellIndex).getName();
        String expression = request.getParameter("expression");
        String rowIndicesString = request.getParameter("rowIndices");
        if (rowIndicesString == null) {
            respond(response, "{ \"code\" : \"error\", \"message\" : \"No row indices specified\" }");
            return;
        }
        boolean repeat = "true".equals(request.getParameter("repeat"));
        int repeatCount = 10;
        if (repeat) {
            String repeatCountString = request.getParameter("repeatCount");
            try {
                repeatCount = Math.max(Math.min(Integer.parseInt(repeatCountString), 10), 0);
            } catch (Exception e) {
            }
        }
        response.setCharacterEncoding("UTF-8");
        response.setHeader("Content-Type", "application/json");
        JSONArray rowIndices = ParsingUtilities.evaluateJsonStringToArray(rowIndicesString);
        int length = rowIndices.length();
        JSONWriter writer = new JSONWriter(response.getWriter());
        writer.object();
        try {
            Evaluable eval = MetaParser.parse(expression);
            writer.key("code");
            writer.value("ok");
            writer.key("results");
            writer.array();
            Properties bindings = ExpressionUtils.createBindings(project);
            for (int i = 0; i < length; i++) {
                Object result = null;
                int rowIndex = rowIndices.getInt(i);
                if (rowIndex >= 0 && rowIndex < project.rows.size()) {
                    Row row = project.rows.get(rowIndex);
                    Cell cell = row.getCell(cellIndex);
                    try {
                        ExpressionUtils.bind(bindings, row, rowIndex, columnName, cell);
                        result = eval.evaluate(bindings);
                        if (repeat) {
                            for (int r = 0; r < repeatCount && ExpressionUtils.isStorable(result); r++) {
                                Cell newCell = new Cell((Serializable) result, (cell != null) ? cell.recon : null);
                                ExpressionUtils.bind(bindings, row, rowIndex, columnName, newCell);
                                Object newResult = eval.evaluate(bindings);
                                if (ExpressionUtils.isError(newResult)) {
                                    break;
                                } else if (ExpressionUtils.sameValue(result, newResult)) {
                                    break;
                                } else {
                                    result = newResult;
                                }
                            }
                        }
                    } catch (Exception e) {
                    // ignore
                    }
                }
                if (result == null) {
                    writer.value(null);
                } else if (ExpressionUtils.isError(result)) {
                    writer.object();
                    writer.key("message");
                    writer.value(((EvalError) result).message);
                    writer.endObject();
                } else {
                    StringBuffer sb = new StringBuffer();
                    writeValue(sb, result, false);
                    writer.value(sb.toString());
                }
            }
            writer.endArray();
        } catch (ParsingException e) {
            writer.key("code");
            writer.value("error");
            writer.key("type");
            writer.value("parser");
            writer.key("message");
            writer.value(e.getMessage());
        } catch (Exception e) {
            writer.key("code");
            writer.value("error");
            writer.key("type");
            writer.value("other");
            writer.key("message");
            writer.value(e.getMessage());
        }
        writer.endObject();
    } catch (Exception e) {
        respondException(response, e);
    }
}